MHMO法处理二甲胺基共轭多烯醛电子光谱的分析

本文采用MHMO(Ⅰ)和MHMO(Ⅱ)两种方法，分析了二甲胺基共轭多烯醛分子的电子光谱、并同HMO法进行比较，提出MHMO法处理共轭同系列分子的电子光谱，计算出的波长和实验波长其结果基本符合．     

改进的Hückel分子轨道方法(Ⅻ)——芳烃基多烯醛电子光谱的研究

本文针对芳烃基多烯醛(C_6H_5-(CH=CH)_n-CHO)提出了两种改进的Huckel分子轨道方法的方案:MHMO(Ⅰ)与MHMO(Ⅱ)。在MHMO(Ⅰ)中,假定直链与苯环中的C=C键的键积分为β,苯环中C-C键的键积分为β,直链中C-C键的键积分为β′=ηβ,C=O键的键积分为β″=1.5β。氧原子的库伦积分参数为h_0=1。其他Huckel假定不变。对η=β′/β提出了3个计算公式。在MHMO(Ⅱ)中,直链中的C-C键的键积分为β=0.65β,其他与MHMO(Ⅰ)假定一样。利用两种MHMO方法,对芳烃基多烯醛进行了计算,得到了它们的π—电子能级,分子轨道系数等。预示了芳烃基多烯醛的最大吸收波长或波数,与实验值符合较好。比HMO方法有非常明显的改进。     

染料基础理论研究——一、Hückel分子轨道法(HMO)在染料发色中的应用

本文应用Hückel分子轨道法研究某些染料的π→π~*跃迁的电子光谱,证实了Hückel分子轨道能级和染料吸收波长之间的相互关系。用一套参数对这些染料进行计算,得到了计算值与实验值之间较为满意的半定量的结果。     

氟苯基corrole系列分子的光谱特性

在6-31G（d，p）水平上用B3LYP（DFT）方法对三苯基corrole（TPC）以及氟苯基corrole系列分子进行几何构型优化，用ZINDO方法计算电子光谱。计算结果表明：氟苯基的取代位置不同对corrole分子的LUMO能缀的影响比较明显。氛苯基corrole电子光谱中最强吸收峰的主要跃迁轨道基本相同（HoM0→LuMo＋1跃迁），氟苯基的引入使得corrole分子的电子光谱最强吸收峰后出现了不可忽视的中等强度的次强吸收峰，且氟苯基位置的变化使得光谱的次强吸收峰的不同主要来源于其主要轨道跃迁组成中LUMO能级的差异。     

１，５—环辛二烯—３，７—二炔基方酸内Ｗong盐衍生物的电子结构和光谱的

用ＰＭ３系列方法研究了两个１，５－环辛二烯－３，７－二炔基方酸内Ｗong盐分子，对它们进行了几何结构优化，并在优化构型的基础上，计算了上述两个分子的电荷密度、红外光谱、电子光谱．预测了这两个分子的发光性质，以其中一个分子骨架设计并计算了一系列方酸内Ｗong衍生物分子的几何结构和电子光谱，讨论了取代基团对方酸钠Ｗong盐分子强度和发光波长的影响。     

1,5-环辛二烯-3,7-二炔基方酸内鎓盐衍生物的电子结构和光谱的理论研究

用PM3系列方法研究了两个1，5-环辛二烯-3，7-二炔取代方酸内鎓盐分子．对它们进行了几何结构优化，并在优化构型的基础上，计算了上述两个分子的电荷密度、红外光谱、电子光谱．预测了这两个分子的发光性质．以其中一个分子为骨架设计并计算了一系列方酸内鎓盐衍生物分子的几何结构和电子光谱，讨论了取代基团对方酸内鎓盐分子发光强度和发光波长的影响．     

改进的Huckel分子轨道方法(Ⅳ)——直链交替炔烃的MHMO计算

本文针对直链交替炔烃提出了一种改进的Huckel分子轨道方法。对n_c=4-44的直链交替炔烃进行了MHMO计算。从理论上预示的直链交替炔烃的最大吸收波长(或波数ν),与实验结果较好地符合。数据清楚表明:MHMO方法比HMO方法有非常明显的改进。与文献中提出的MHMO比较也有明显的改进。全面考查了直链交替炔烃的键级。从理论上估计了直链交替炔烃的键长。     

8-羟基喹啉有机体系电子光谱及二阶非线性光学性质的理论比较研究

运用INDO／CI和NDDO方法，计算并比较了8－羟基喹啉（QH）分子及其衍生物MQH，CNQH的电子光谱，计算结果和实验吻合。在正确的光谱计算基础上，用INDO／CI－SOS公式计算核系列分子的二阶非线性光学系数βijk和βμ，考察了分子电子结构对βμ的影响。     

双桥基双核钼(V)簇合物的电子光谱和电子结构

本文用局部非定域分子轨道模型，简化和改进了对双桥基双核Ｍｏ（Ｖ）原子簇化合物电子结 构和电子光谱的计算，结果与实测值吻合，从而证实了这些化合物的电子光谱，主要取决于金属 －金属相互作用。本文还提出了度量原子簇化合物金属相互作用强度的新方法．     

碲酸合铜（Ⅱ）和高碘酸合铜（Ⅱ）配合物的性质和电化学氧化

测试了碲酸合铜（Ⅱ）和高碘酸合铜（Ⅱ）配合物的电子光谱、电子顺磁共振谱、Ｃｕ２ｐＸＰＳ，并给出了配合物溶液中“Ｃｕ（Ⅲ）／Ｃｕ（Ⅱ）”对的循环伏安图．由电子光谱求得其八面体场强参数Ｄｑ值分别为１３５０ｃｍ－１和１４５０ｃｍ－１，结合电子顺磁共振谱、Ｃｕ２ｐＸＰＳ，探讨了配合物中铜与氧之间的化学键性质，确证了Ｃｕ－ＯＩ键的共价性强于Ｃｕ－ＯＴｅ键，高碘酸根对铜（Ⅱ）具有更强的配位能力．基于“Ｃｕ（Ⅲ）／Ｃｕ（Ⅱ）”对的循环伏安图，在碱性溶液中，用电化学法成功地将二价铜氧化成三价铜．     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-